Locking device



J. E. MALIVE RT 847,014

LOCKING DEVI-CE Fgb. 23, 1932.

Filed Oct. '7, 1929 w w e 3 Sheets-Sheet 1 ziza! I "Fb. 23, 1932. J. E.M'ALIVERT LOCKING DEVICE I Filed 001:. 7,- 1925 s Sheets-Sheet 3 H"Hannah's Patented Feb. 23, 1932 UNITED STATES PATENT? "OFFICE JULEsEUGENE MALIVERT, on PARIS, FRANCE, nssrenon T socrn'rn DITE: rxnccnssomnDE PRECISION, 0F LEVALLOIS-PERRET', FRANCE LOCKING DEVICE I Applicationfiled October 7, 1929, Serial No. 397,976, and in Lu xembiirg No veniber 15, 1928. p

The present invention relates to locking devices and, more especially,to those of the type adapted to be used for locking and releasing thehood of an automobile.

One of the objects of the invention is to provide means operative tofacilitate opening and closing of the locking device for the hood.

, Other objects will appear in the course of 1 the detailed descriptionnow to be given with reference to the accompanying drawings, in which VV Fig. 1 is an elevation, partially in section,

. of one illustrative embodiment of the invention;

Fig. 2 represents, in a similar manner, a second possible form of theinvention;

Fig. 3 illustrates, in partial section, a third modification; and

Figs. 4 to 28 show, in elevation, and in partial section, twenty-fiveother possible variants.

Referring to Fig. 1 of the drawings, there is shown and released from,frame element 0? by an assembly composed of a cylindrical member a,astop 6 slidably mounted in cylinder at and integral with a rod 6 whicharticulates with a lever (Z pivotally mounted on chassis d, spring 0tending to force element Z2 upward,a hook f adapted to engage in a looph rigidly attached to hood 6 and provided with a finger-piece g,-and athreaded element k adapted to be rotated by milled head v'35 j andprovided with a braking element (1 Normally spring 0 is calibrated to besuiticiently stiff to prevent dislodgment of element f by Vibrationstransmitted thereto during movement of the automobile, but thisstifiness is generally so great as to demand considerable efi'ort on thepart of the motorist when 1t is desired to open thehood by directtraction on finger-piece 9. As will be at once apparent from inspectionof the drawings, this etfort is eliminated by turning screw is so as ahood 6 designed to be locked to,

I in Fig. 5, cam 39 (Fig. 4) isrepl'ac edby Fig. 10, by a chain or cable23 to lower stop I) and compress spring 0, hook f being then easilydisengageable from loop it. When it is desired to bring elements f andit back into tightengagement, it is only necessary to carry out aninverse series of 50 operations. The structures shownin Figs. 2 and Sareslight variants of the one hereinabove described. In the form of devicerepresented in Fig. 2, assembly 9', k, a is replaced by a threaded boltadapted to exert pressure on head b',and a threaded female element 9?adapted to be'rotatedby milled head j, the general operation being thesame as for theassembly shown in Fig. 1. In the structure illustrated inFig. 3, rod?) is in threaded engagement with stop b and the latter isslidably mounted in longitudinal slots formed in female element g whichlatter is rotatable by milled-head j. Here, againthe general mode ofoperation is the same as forthe structure shown in Fig. l. i vReferring-now to Figs. 4. to 10, there is shown aseries of generalassemblies similar to those already described, but inwh'ich the rotationof a milled-head (j) is replaced by the angular displacement of a leverj to counteract the action ofspring 0. In the structure shown 'in Figl,lever 7' is provided at one end with a cam-shaped portion 19 and- [5tends to move into its inactive position under the action of spring 8wound around pivot al en lever j is raised, head I) descends andcompresses spring 0. In the device shown 8O link t-connected:toa'resiliently mounted piston, in'Fig. 6, by an articulated"system t whose operation is "obvious, in Fig. 7 by a resiliently mountedbutton 6 in Figs. 8 and 9, by rack and pinion assemblies 25*, t ,;and inwinding on a 'drum integral with lever j p It will-be noted that in the,structure shown in F ig; 9, lever j? isv replaced by a crank j Thisarrangement permits hQOk. f to be entirclydia,

engaged from loop h by movement in a direc- (Fig. 12), or by tionparallel to hood 6, the multiplication of effort of crank 1' beingsutficiently great to do away with the necessity for movementtransversely to e.

In the form of devices shown in Figs. 11 to 19, hook f is directlyconnected to rod b and the action of spring a is modulated by the actionof a lever y' provided with a cam portion 0 hearing on a shoulder formedon the body portionof f (Fig. 11) ,.or by the rotation of a threadedelement 3' engaginginteriorly said spring'tending to move said hook in adirection parallel to the axis of said tube, a

loop adapted to engage with'said hook, and

J ULES'EUGENE MALIVERT.

with rod 6 and exteriorly with cylinder a i toothed recesses-t7formedinrodb or by a system similar to teeth 25 are ment (Fig 14;) ,orby the action of a crankj, driving v (Fig,v 15 on byJtheaction; Q -an asem a J3 asim l n Fig, 3 9 h heingsupported on chassis d :(Fig. I62), or

by a rackgand-pinioniassembly, 1%,. t (Fig-18),,

rack t? beingmade integral; with red. b-{QEig 1935s desired. l

,igsi l9 to- 27;; show various devices. for modifying the efiect; 01:"spring; ablydisplace.- ment oi. hook, In Fig, 19 ,thisjis aocoms plishedbymeans of lever .fireactingon rack;

andTpin-ion tit in screw displaceme-I 1tof nose; 7?

Fig, 20, by the/:2 action. of-

fitting into supports k1,", inFig, 23-,by the action; of assembly 1-,-in Fig; 25,,by/ theac-- on xhook pivoted at m, tion oi; wonm and whoeL70. f -omhookfi piv-- oted at m, inlF-ig:. 26, by the'act-ion oi screw-]{1 {on ajrack, and p niorif 7 being; pivotedf atg ma, J. l I Thestructurei-showniin Fig; 28fshows-"how-z thoseforu1s;.o devices.proyidedwith a: lever" 9' may be locked in positionby meansof lock; ytraversing a; pair of? openings-m in a, U- shaped elementm; embracing,cylinder a.,

i What lclaimiisa 1. In cornbinatiomapair ofi members-,mo-v ablerelatively to one another,lockingmeans pivotally attachedto one. of saidmembersimeluding; attube, spring tending to IHQVQSSzldahODk in a direc:tion parallel: to I the; axis o-f. said, tube, a loop attached to-theothenof said pair of members;v and. adapted means operative to ;modii'ythe eiieotex ercised. by said-spring on said hook when spring and hook;are engagement with one; another, said :last-named. means including a;rack: associated with said hook, a lever, and

pinion means; associated-J with said lever: and;

pinion u'onapair' ofresilientl sup pi r-t d! ra k t,

laon body Pot hook f, in Fig. 21,,byj

agspring, and a: hook, said;

the rotation of a crank driving a pinionu whiehwenga-ges with -Fig.1&),--

Fig. 13 in which" v W formed on a separate exterior eleto engage withsaid hook, and

